/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors 
 * may be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.system.util;

import java.io.OutputStream;
import net.sf.jasperreports.engine.JRException;
import net.sf.jasperreports.engine.JasperPrint;
import net.sf.jasperreports.engine.export.JRPdfExporter;
import net.sf.jasperreports.engine.export.JRXlsExporter;
import net.sf.jasperreports.export.SimpleExporterInput;
import net.sf.jasperreports.export.SimpleOutputStreamExporterOutput;
import net.sf.jasperreports.export.SimpleXlsReportConfiguration;

/**
 * Supports PDF, HMTL and XLS exports.
 *
 * @author Lars Helge Overland
 */
public class JRExportUtils {
  public static final String TYPE_XLS = "xls";

  public static final String TYPE_PDF = "pdf";

  /**
   * Export the provided JasperPrint the format given by type.
   *
   * @param type the type to export to. XLS, PDF and HTML are supported.
   * @param out the OutputStream to export to.
   * @param jasperPrint the JasperPrint to export.
   * @throws JRException on export failure.
   */
  public static void export(String type, OutputStream out, JasperPrint jasperPrint)
      throws JRException {
    if (TYPE_XLS.equals(type)) {
      SimpleXlsReportConfiguration config = new SimpleXlsReportConfiguration();

      config.setDetectCellType(true);
      config.setRemoveEmptySpaceBetweenRows(true);
      config.setRemoveEmptySpaceBetweenRows(true);
      config.setCollapseRowSpan(true);
      config.setWhitePageBackground(false);

      JRXlsExporter exporter = new JRXlsExporter();
      exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
      exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(out));
      exporter.setConfiguration(config);
      exporter.exportReport();
    } else if (TYPE_PDF.equals(type)) {
      JRPdfExporter exporter = new JRPdfExporter();
      exporter.setExporterInput(new SimpleExporterInput(jasperPrint));
      exporter.setExporterOutput(new SimpleOutputStreamExporterOutput(out));
      exporter.exportReport();
    }
  }
}
